Dust-guard.



110,740,524. PATENTBDIOCT. a, 190s. J. J. BUSENBENZ & E. LARGE.

DUST GUARD.

APPLIGATION FILED JIAR, 10, 1903.

10 MODEL.

a lurzthnrnnrlainnnivl y UNITE STATES 'CPatented. October 6, mos. PATENTOFFICE.

JACOB J. BUsENBENZ. OF 'oHIoAGo, ILLINOIS, Ann EMIL LANGE, OF DAV-ENPORT, IOWA, ASSIGNORS TO R NK M. ur'r, OF oHIoAcO, ILLINOIS, ANDRAILWAY J URNA LUBRIOATING' COMPANY, A CORPORATION OF WISCONSIN.

'ousT-ou'ARo.

SPEGIFIGATIQN formingpart of- Letters ar a- No. 740,524, dated ootobero, 1903.

Application filed January 10,1903. Serial No. 138,559- on model.)

proved construction and capableof being more readily applied to thejournal-box than is true of known devices.

The invention is illustrated in the accompanying drawings, in whichFigure 1 represents a broken longitudinal sectional-view of ajournal-box equipped at its. inner end with our improved dustguard; Fig.2, a side view of the guard; Fig. 3, a sec-' tional view taken asindicated at line 3 of Fig. 4 and showing one casing-plate of thedust-guard removed; Fig. 4, a transverse vertical sectional view of thedust-guard, taken as indicated at line 4 of Fig. 6; Fig. 5, a top planView of the dust-guard; Fig. 6, a trans- 0 verse horizontal section ofthe same, takenas indicated at line 6 of Fig. 3; and Fig. 7 an.

enlarged broken section illustrating the manner in which thecasing-plates of the dust-Q guard are spaced and riveted. The devicewill be specifically and mi-' nutely described in connection with a carj our-, nal-box without intending thereby to limit; the inventionunduly.

A represents an axle, B a 40 common construction,provided at its outerend with any suitable lid and at its inner end with the usual dust-guardslot or chamber 19., and G our improved dust guard secured firmly withinthe slot by being driven or forced thereinto. I

. 0 o are provided. The slots o are of such depth (see dotted lines,Fig. 3) and the shouljournal-box of The device 0 comprises a casing orguide formed of suitably-spaced rigidly-connected plates 0, and aspring-held sectionally-constructed automatically size-adjustingpacking-ring c. The platesc are of rectangular form and fit snuglywithin the slot b. They are spaced and rigidly connected by rivets cshouldered as shown in Fig. 7 and have registering perforations o ofample size to receive the journal and permit transverse move- 'mentthereof (either vertically or forwardly or backwardly) with relation toitself. Asthe main play of the axle in its journal-box is ina verticaldirection, the openings are elongated Vertically, as shown. The ring 0comprises two forwardly and rearwardly swinging sections 0 0 joinedtogether at their lower ends by a pivot o and a verticallyslidable (withrelation to the other twosections) section 0 The members 0 0 have theiradjacent ends reduced and rounded to form pivotal tongues o of halfthickness, whereat the members are pivotally joined. Each tongue isprovided with an oil-hole 0 through which a lubricant can pass to theadjacent surfaces of said tongues. The member c is provided at its endswith tenons 0 which fitfreely within mortises or slots o with which theupper 'ends' of the members ders at the'bases of the tonguessufliciently removed from the members 0 c to permit contraction of thering, thus allowing for wear.

The ring-sections are held together,

and the ring is properly centered by opposed upper and lower springs dand opposed latrivets d and bear adjacent to their upper ends againstrivets d the lower extremities of said springs bearing against the upperportions of the members c 0 From the foregoing description it will beperceived that the ring 0 collapses automatically to compensate for wearand also is movable as a whole forwardly, backwardly, upwardly, ordownwardly to compensate for relative movement between the journal-boxand journal. The dust-guard is applied to the journal-box by driving orforcing it into the cavity, which receives it in such manner that thecasing or guide is immovably fixed in said cavity, thereby afiordingsmooth guide-surfaces between which the packingring moves. Preferablythe heads of the rivets are allowed to project at the inner side of thecasing, thereby aiding in wedging the casing firmly within thedust-guard cavity, the contact at the other side of the casing being asclose as possible to prevent dust from entering there. In addition theupper end of the cavity may be closed by a dust-tight stopperf'.

It will be understood that the journal-box may be raised to permit thebrass and wedge to be removed and replaced, as usual, the easing movingupwardly with the journal-box while the axle and ring remain stationary.

Changes in details and arrangement within the spirit of our inventionare contemplated. For instance, the dust-guard may be inserted in itscavity the opposite end up and will give good results in this position,and the construction of the ring 0 and the arrangement of the springsmay be varied, while still retaining the feature of movability in anydirection in its own plane within an immovable separately-formed casing.

What we regard as new, and desire to secure by Letters Patent, is

1. The combination with a journal-box having a dust-guard cavity, of acasing comprising suitably-spaced rigidly-connected metal-" lic platesimmovably secured within said cavity, and a spring-held automaticallysizeadjusting packing-ring movable in any direction in its own planewithin said casing, for the purpose set forth.

2. A dust-guard of the character described,

comprising a suitable casing, and a packing ring within said casingcomprising two pivotaliy-counccted sections and a third section slidablyjointed to the free ends of said firstnamed sections and movable withrelation thereto, for the purpose set forth.

3. Adust-guard ot' the characterdescribed, comprising a suitable casing,opposed upper and lower springs supported thereon,opposed lateralsprings and an automatically size-adjusting packing-ring confinedbetween said springs and capable of movement in any di-"- rection in itsown plane, for the purpose set forth.

4:. A dust-guard comprising a suitable casing, a packing-ring withinsaid casing comprising two pivotally-connected sections and a thirdsection having slidably-jointed connection with the free ends of saidfirst-named sections, and opposed springs bearing upon said ring at thepoint of connection between said two first-named sections and at saidsecond-named section, for the purpose set forth.

5. A dust-guard, comprising a suitable casing, a packing-ring comprisingtwo pivotallyconnected ring-sections and a third section havingslidably-jointed connection with the free ends of said first-namedsections, opposed springs bearing upon said last-named ring-section andthe diametrically opposite portion of said ring and lateral springsbearin g against the free end portions of said firstnamed ring-sections.

6. A dust-guard comprising two plates provided with journal-openings,rivets equipped with spacing-shoulders serving to space and rigidlyconnect said plates, upper and lower springs having bearings in saidcasing near their extremities, a packing-ring comprising twopivotally-joined sections and a third section having tongue-and-grooveconnection with the free extremities of said first-named sections, saidthird section bearing upon one of said springs, and lateral springsconnected with said casing and having their extremities bearing againstthe free end portions of said first-named ring-sections, "for thepurpose set forth.

7. The combination with ajournal-box having a dust-guard cavity, of adust-guard casing having suitably-spaced rigidly-connected sides andimmovably fixed in said cavity, and a packing-ring movable in its ownplane with in said casing, and immovable laterally with relation to thecasing for the purpose set forth.

8. A dust-guard comprising a suitable casing, and a packing-ring withinsaid casing comprising two pivotally-connected sections suitablyconcaved to engage more than onehalf of the periphery of the journalengaged by the packing-ring, and a third section completin g thepacking-ring and opposite the pivotal connection of said first-named.sections and movable toward said pivotal connection,

for the purpose set forth.

9. A dust-guard comprising a casing with suitably-spacedrigidly-connected sides, a packing-ring comprising two sectionspivotally connected at their adjacent ends and suitably concaved toembrace more than onehalf of the periphery of the journal engaged by thepacking-ring, and a third section having slidable connections at itsextremities with g 25 the adjacent extremities of said first-named a apacking-ring moving within said casing in its own plane and immovablelateraiiy with relation to the casing, for the purpose set forth.

JACOB J. BUSENBENZ. EMIL LANGE.

Witnesses as to Jacob J. Bnsenbenz: A. O. KITTLESON,

L. HEISLAR. Witnesses as to Emil Lange: F. O. KROSGEB,

ADOLPH PINSTER.

